Dewey Decimal Classification System

The Dewey Decimal Classification (DDC) is a library system that organizes books by subject using numbers. Each subject area is assigned a range of numbers, allowing books to be grouped logically. For example, books on history might be in one number range, while science books are in another. This system helps users find books efficiently and maintains a consistent order across libraries. It is widely used in libraries worldwide, making it easier to locate and categorize a vast array of topics systematically.